BMW X3 Oxygen Sensor Pre Cat OEM 11787558055 or 11787558073 (2007-2010)

Product Description

Pre cat oxygen sensor. Located before the catalytic converter. Select O2 sensor location from the menu. Made by Bosch OEM.

Part# 11 78 7 558 055 Pre cat in front manifold.Cyl 1-3 (1400mm length)

Part# 11 78 7 558 073 Pre cat in rear manifold. Cyl 4-6 (910mm length)

Cross Reference:

11787558055

11787558073

17098

17099

0-258-017-099